Inch 1/4 is suitable for 1/4 of the screw hole equipment on the market, inch 1/4 thread diameter is 6.35mm, there are stainless steel, iron nickel plating and iron material, a variety of material options, camera screw pannier quick mounting plate screw, screw surface a straight ring free hand to remove the screw, prevent the installation of the quick mounting plate during the screw rotation, can quickly install the camera.